High velocity forming of magnesium and titanium sheets

Alejandro Revuelta, Jari Larkiola, A. S. Korhonen, K. Kanervo

Research output: Contribution to journalArticle in a proceedings journalScientificpeer-review

9 Citations (Scopus)

Abstract

Cold forming of magnesium and titanium is difficult due to their hexagonal crystal structure and limited number of available slip systems. However, high velocity deformation can be quite effective in increasing the forming limits. In this study, electromagnetic forming (EMF) of thin AZ31B-O magnesium and CP grade 1 titanium sheets were compared with normal deep drawing. Same dies were used in both forming processes. Finite element (FE) simulations were carried out to improve the EMF process parameters. Constitutive data was determined using Split Hopkinson Pressure Bar tests (SHPB). To study formability, sample sheets were electromagnetically launched to the female die, using a flat spiral electromagnetic coil and aluminum driver sheets. Deep drawing tests were made by a laboratory press-machine. Results show that high velocity forming processes increase the formability of Magnesium and Titanium sheets although process parameters have to be carefully tuned to obtain good results.
Original languageEnglish
Pages (from-to)157-162
JournalAIP Conference Proceedings
Volume907
Issue number1
DOIs
Publication statusPublished - 2007
MoE publication typeA4 Article in a conference publication
Event10th ESAFORM Conference on Material Forming - Zaragoza, Spain
Duration: 18 Apr 200720 Apr 2007

Keywords

  • EMF
  • FEM
  • Magnesium
  • Titanium

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